EP1453195A3 - AGC circuit - Google Patents

AGC circuit Download PDF

Info

Publication number
EP1453195A3
EP1453195A3 EP04004359A EP04004359A EP1453195A3 EP 1453195 A3 EP1453195 A3 EP 1453195A3 EP 04004359 A EP04004359 A EP 04004359A EP 04004359 A EP04004359 A EP 04004359A EP 1453195 A3 EP1453195 A3 EP 1453195A3
Authority
EP
European Patent Office
Prior art keywords
level
reference voltage
frequency signal
binary data
equal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04004359A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1453195A2 (en
Inventor
Etsuya Shibata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of EP1453195A2 publication Critical patent/EP1453195A2/en
Publication of EP1453195A3 publication Critical patent/EP1453195A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/341—Muting when no signals or only weak signals are present

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Television Receiver Circuits (AREA)
EP04004359A 2003-02-27 2004-02-26 AGC circuit Withdrawn EP1453195A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003050377A JP2004260653A (ja) 2003-02-27 2003-02-27 Ａｇｃ回路
JP2003050377 2003-02-27

Publications (2)

Publication Number Publication Date
EP1453195A2 EP1453195A2 (en) 2004-09-01
EP1453195A3 true EP1453195A3 (en) 2007-11-07

Family

ID=32767785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04004359A Withdrawn EP1453195A3 (en) 2003-02-27 2004-02-26 AGC circuit

Country Status (2)

Country Link
EP (1) EP1453195A3 (ja)
JP (1) JP2004260653A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5408546B2 (ja) * 2009-12-25 2014-02-05 株式会社Ｊｖｃケンウッド 音量制限装置及び集音器
JP6497962B2 (ja) * 2015-02-18 2019-04-10 日本アンテナ株式会社 自動利得制御回路

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2164846A1 (de) * 1971-12-27 1973-07-05 Licentia Gmbh Schwundregelschaltung
JPH08236849A (ja) * 1995-02-28 1996-09-13 Ando Electric Co Ltd Ｌｄ光出力制御回路
EP1018803A2 (en) * 1999-01-08 2000-07-12 Matsushita Electric Industrial Co., Ltd. Automatic gain control method and device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2164846A1 (de) * 1971-12-27 1973-07-05 Licentia Gmbh Schwundregelschaltung
JPH08236849A (ja) * 1995-02-28 1996-09-13 Ando Electric Co Ltd Ｌｄ光出力制御回路
EP1018803A2 (en) * 1999-01-08 2000-07-12 Matsushita Electric Industrial Co., Ltd. Automatic gain control method and device

Also Published As

Publication number Publication date
EP1453195A2 (en) 2004-09-01
JP2004260653A (ja) 2004-09-16

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